Statistical analysis of glucose production from Eucalyptus pellita with individual control of chemical constituents

Soo-Kyeong Jang, June-Ho Choi, Jong-Hwa Kim, Hoyong Kim, Hanseob Jeong and In-Gyu Choi

Renewable Energy, 2020, vol. 148, issue C, 298-308

Abstract: To understand the effects of the biomass constituents for enzymatic hydrolysis, a tropical hardwood, Eucalyptus pellita, was employed to change the content of chemical constituents and regression assessment was progressed. The liquid hot water and acid-chlorite pretreatment controlled hemicellulose and lignin removal rate from 3.1 to 91.7% and from 4.4 to 99.1%, respectively. Total lignin in E. pellita (34.8%) was obviously reduced up to 9.0% under 4 g of sodium chlorite and 0.8 mL of acetic acid with 3 times loading. In this case, acid-insoluble lignin (2.4%) was entirely eliminated compared with that of E. pellita (29.0%), whereas acid-soluble lignin (6.6%) was preferably increased compared with of E. pellita (2.3%). The maximum glucose yield (87.5%) after the combined pretreatment and enzymatic hydrolysis were dramatically improved compared with that of liquid hot water pretreatment alone (28.2%). Meanwhile, a high glucose yield (83.9%) could also be obtained by acid-chlorite pretreatment alone. The adjusted R-squared value of hemicellulose and lignin removal rate (0.9285) and lignin removal rate alone (0.9063) with glucose yield was determined by linear regression analysis.

Keywords: Liquid hot water pretreatment; Acid-chlorite pretreatment; Glucose production; Linear regression analysis; Eucalyptus pellita (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:148:y:2020:i:c:p:298-308

DOI: 10.1016/j.renene.2019.11.058

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